October weather forecast
Alta, WY

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Weather in October

October, like September, is another chilly autumn month in Alta, Wyoming, with an average temperature fluctuating between 46.9°F (8.3°C) and 29.1°F (-1.6°C).

Temperature

The onset of October witnesses a clear shift in the average high-temperature, dropping from a comfortable 64.9°F (18.3°C) in September to a frosty 46.9°F (8.3°C). Alta, in October, observes a steady average low-temperature of 29.1°F (-1.6°C).

Humidity

In Alta, the average relative humidity in October is 70%.

Rainfall

In October, the rain falls for 8.9 days. Throughout October, 2.36" (60mm) of precipitation is accumulated. In Alta, during the entire year, the rain falls for 96.6 days and collects up to 32.95" (837mm) of precipitation.

Snowfall

Months with snowfall in Alta are January through June, August through December. In October, it is snowing for 12.1 days. Throughout October, 12.8" (325mm) of snow is accumulated. Throughout the year, in Alta, there are 160.8 snowfall days, and 200.16" (5084mm) of snow is accumulated.

Daylight

In October, the average length of the day is 10h and 59min.
On the first day of October in Alta, sunrise is at 7:22 am and sunset at 7:04 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 6:15 pm MDT.

Sunshine

The average sunshine in October in Alta, Wyoming, is 6.2h.

UV index

January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Alta. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: An average maximum UV index of 1 in October leads to these recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Frequently asked questions

What is the usual temperature for Alta in October?

During October, Alta experiences an average high-temperature of 46.9°F (8.3°C) and a low-temperature of 29.1°F (-1.6°C).

What is the average humidity in October in Alta?

In Alta, Wyoming, the average relative humidity in October is 70%.

How much does it rain in Alta in October?

In October, in Alta, Wyoming, the rain falls for 8.9 days. Throughout October, 2.36" (60mm) of precipitation is accumulated.

How much does it snow in Alta in October?

In Alta, Wyoming, in October, snow falls for 12.1 days, with typically accumulated 12.8" (325mm) of snow.

How many hours of daylight does Alta have in October?

In Alta, the average day length in October is 10h and 59min.

What time are sunrise and sunset in October in Alta?

In October, on the first day of the month, sunrise is at 7:22 am and sunset at 7:04 pm. On the last day of the month, in Alta, sunrise is at 7:59 am and sunset at 6:15 pm MDT.

How many hours of sunshine does Alta have in October?

In Alta, Wyoming, the average sunshine duration in October is 6.2h.

When is the lowest UV index in Alta?

The months with the lowest UV index in Alta, Wyoming, are January through March, October through December, with an average maximum UV index of 1.

How high is the UV index in October in Alta?

In October, the average daily maximum UV index in Alta is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Alta, WY

Average temperature in October - Alta, WY
  • Average high temperature in October: 46.9°F

The warmest month (with the highest average high temperature) is July (75.4°F).
The month with the lowest average high temperature is December (23.2°F).

  • Average low temperature in October: 29.1°F

The month with the highest average low temperature is July (46.9°F).
The coldest month (with the lowest average low temperature) is December (7.7°F).

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Average pressure in October
Alta, WY

Average pressure in October - Alta, WY
  • Average pressure in October: 30.06"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in October
Alta, WY

Average wind speed in October - Alta, WY
  • Average wind speed in October: 5.2mph

The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest months (with the lowest average wind speed) are January and December (4.8mph).

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Average humidity in October
Alta, WY

Average humidity in October - Alta, WY
  • Average humidity in October: 70%

The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (47%).

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Average rainfall in October
Alta, WY

Average rainfall in October - Alta, WY
  • Average rainfall in October: 2.36"

The wettest month (with the highest rainfall) is February (4.13").
The driest month (with the least rainfall) is July (0.91").

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Average rainfall days in October
Alta, WY

Average rainfall days in October - Alta, WY
  • Average rainfall days in October: 8.9 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (3 days).

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Average snowfall in October
Alta, WY

Average snowfall in October - Alta, WY
  • Average snowfall in October: 12.8"

The month with the highest snowfall is February (34.33").
The month with the least snowfall is July (0").

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Average snowfall days in October
Alta, WY

Average snowfall days in October - Alta, WY
  • Average snowfall days in October: 12.1 days

The month with the highest number of snowfall days is March (23.6 days).
The month with the least snowfall days is July (0.1 days).

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Average daylight in October /
Average sunshine in October
Alta, WY

Average daylight in October / Average sunshine in October - Alta, WY
  • Average daylight in October: 11h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in October: 6h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).

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Average sunshine days in October
Alta, WY

Average sunshine days in October - Alta, WY
  • Average sunshine days in October: 14.8 days

The month with the most sunshine days is July (20.3 days).
The month with the least sunshine days is April (6.2 days).

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Average UV index in October
Alta, WY

Average UV index in October - Alta, WY
  • Average UV index in October: 1

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).

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Average cloud cover in October
Alta, WY

Average cloud cover in October - Alta, WY
  • Average cloud cover in October: 35

The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 14).

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Average visibility in October
Alta, WY

Average visibility in October - Alta, WY
  • Average visibility in October: 6mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (3mi).

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Alta, Wyoming, USA

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